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connection.ts
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156 lines (137 loc) · 4.93 KB
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import * as cp from "child_process";
import { getPathFromAmdModule } from "vs/base/common/amd";
import { VSBuffer } from "vs/base/common/buffer";
import { Emitter } from "vs/base/common/event";
import { ISocket } from "vs/base/parts/ipc/common/ipc.net";
import { NodeSocket } from "vs/base/parts/ipc/node/ipc.net";
import { IEnvironmentService } from "vs/platform/environment/common/environment";
import { ILogService } from "vs/platform/log/common/log";
import { getNlsConfiguration } from "vs/server/src/node/nls";
import { Protocol } from "vs/server/src/node/protocol";
import { uriTransformerPath } from "vs/server/src/node/util";
import { IExtHostReadyMessage } from "vs/workbench/services/extensions/common/extensionHostProtocol";
export abstract class Connection {
private readonly _onClose = new Emitter<void>();
public readonly onClose = this._onClose.event;
private disposed = false;
private _offline: number | undefined;
public constructor(protected protocol: Protocol, public readonly token: string) {}
public get offline(): number | undefined {
return this._offline;
}
public reconnect(socket: ISocket, buffer: VSBuffer): void {
this._offline = undefined;
this.doReconnect(socket, buffer);
}
public dispose(): void {
if (!this.disposed) {
this.disposed = true;
this.doDispose();
this._onClose.fire();
}
}
protected setOffline(): void {
if (!this._offline) {
this._offline = Date.now();
}
}
/**
* Set up the connection on a new socket.
*/
protected abstract doReconnect(socket: ISocket, buffer: VSBuffer): void;
protected abstract doDispose(): void;
}
/**
* Used for all the IPC channels.
*/
export class ManagementConnection extends Connection {
public constructor(protected protocol: Protocol, token: string) {
super(protocol, token);
protocol.onClose(() => this.dispose()); // Explicit close.
protocol.onSocketClose(() => this.setOffline()); // Might reconnect.
}
protected doDispose(): void {
this.protocol.sendDisconnect();
this.protocol.dispose();
this.protocol.getSocket().end();
}
protected doReconnect(socket: ISocket, buffer: VSBuffer): void {
this.protocol.beginAcceptReconnection(socket, buffer);
this.protocol.endAcceptReconnection();
}
}
export class ExtensionHostConnection extends Connection {
private process?: cp.ChildProcess;
public constructor(
locale:string, protocol: Protocol, buffer: VSBuffer, token: string,
private readonly log: ILogService,
private readonly environment: IEnvironmentService,
) {
super(protocol, token);
this.protocol.dispose();
this.spawn(locale, buffer).then((p) => this.process = p);
this.protocol.getUnderlyingSocket().pause();
}
protected doDispose(): void {
if (this.process) {
this.process.kill();
}
this.protocol.getSocket().end();
}
protected doReconnect(socket: ISocket, buffer: VSBuffer): void {
// This is just to set the new socket.
this.protocol.beginAcceptReconnection(socket, null);
this.protocol.dispose();
this.sendInitMessage(buffer);
}
private sendInitMessage(buffer: VSBuffer): void {
const socket = this.protocol.getUnderlyingSocket();
socket.pause();
this.process!.send({ // Process must be set at this point.
type: "VSCODE_EXTHOST_IPC_SOCKET",
initialDataChunk: (buffer.buffer as Buffer).toString("base64"),
skipWebSocketFrames: this.protocol.getSocket() instanceof NodeSocket,
}, socket);
}
private async spawn(locale: string, buffer: VSBuffer): Promise<cp.ChildProcess> {
const config = await getNlsConfiguration(locale, this.environment.userDataPath);
const proc = cp.fork(
getPathFromAmdModule(require, "bootstrap-fork"),
[ "--type=extensionHost", `--uriTransformerPath=${uriTransformerPath}` ],
{
env: {
...process.env,
AMD_ENTRYPOINT: "vs/workbench/services/extensions/node/extensionHostProcess",
PIPE_LOGGING: "true",
VERBOSE_LOGGING: "true",
VSCODE_EXTHOST_WILL_SEND_SOCKET: "true",
VSCODE_HANDLES_UNCAUGHT_ERRORS: "true",
VSCODE_LOG_STACK: "false",
VSCODE_LOG_LEVEL: this.environment.verbose ? "trace" : this.environment.log,
VSCODE_NLS_CONFIG: JSON.stringify(config),
},
silent: true,
},
);
proc.on("error", () => this.dispose());
proc.on("exit", () => this.dispose());
proc.stdout.setEncoding("utf8").on("data", (d) => this.log.info("Extension host stdout", d));
proc.stderr.setEncoding("utf8").on("data", (d) => this.log.error("Extension host stderr", d));
proc.on("message", (event) => {
if (event && event.type === "__$console") {
const severity = (<any>this.log)[event.severity] ? event.severity : "info";
(<any>this.log)[severity]("Extension host", event.arguments);
}
if (event && event.type === "VSCODE_EXTHOST_DISCONNECTED") {
this.setOffline();
}
});
const listen = (message: IExtHostReadyMessage) => {
if (message.type === "VSCODE_EXTHOST_IPC_READY") {
proc.removeListener("message", listen);
this.sendInitMessage(buffer);
}
};
return proc.on("message", listen);
}
}